学个词Learn a Word 第1545-personal-trainer

 　　今天我们要学的词是 personal trainer. Personal is spelled p-e-r-s-o-n-a-l, and trainer is spelled t-r-a-i-n-e-r, personal trainer. Personal trainer 私人教练。随着人们健康意识的加强，Personal trainers have become one of the fastest-growing occupations in the U.S. 私人教练日益成为美国成长最快的职业之一。 From 2001 to 2011, the number of personal trainers grew by 44 percent to 231,500. 2001年到2011年间，私人教练的人数增长了百分之44， 总人数增至23万1千500人。For personal trainers, the average hourly pay is less than $15 and work hours are erratic¹. 私人教练平均收入每小时不到15美元，而且工作时间也很不规律。好的，今天我们学习的词是 personal trainer, personal trainer, personal trainer...

1 erratic   

adj.古怪的，反复无常的，不稳定的

参考例句：

• The old man had always been cranky and erratic.那老头儿性情古怪,反复无常。
• The erratic fluctuation of market prices is in consequence of unstable economy.经济波动致使市场物价忽起忽落。